<!DOCTYPE html>
<html manifest="demo1.appcache">
    <head>
        <meta charset="UTF-8">
        <title></title>
        <link rel="stylesheet" href="bootstrap-4.3.1-dist/css/bootstrap.css">
        <link rel="stylesheet" href="bootstrap-4.3.1-dist/css/bootstrap.min.css">
        <script type="text/javascript" src="js/jquery-3.3.1.min.js"></script>
        <script type="text/javascript" src="js/jquery-3.3.1.js"></script>
        <script type="text/javascript" src="bootstrap-4.3.1-dist/js/bootstrap.bundle.min.js"></script>
    </head>
    <body>
        <img src="../img/01.png" class="mb-2" style="width:100%"><br>
        <img src="../img/02.png" class="mb-2" style="width:100%"><br>
        <img src="../img/03.png" class="mb-2" style="width:100%"><br>
        <img src="../img/04.png" class="mb-2" style="width:100%"><br>
    </body>
</html>